<!DOCTYPE html>
<html>
 <head>
  <meta charset="UTF-8">
  <title>CSS样式</title>
  <style>
   #tyu{
    color: red;
    font-size: 50px;
   }
   .nuc{
    color: blue;
   }
  </style>
 </head>
 <body>
  <div id="tyu">太原学院</div>
  <div class="nuc">中北大学</div>
  <div class="nuc">山西工学院</div>
 </body>
</html>
